https://www.theguardian.com/technology/2022/sep/29/bitcoin-climate-impact-gold-mining-environmental-damage-cryptocurrency

Environmental damage of producing cryptocurrency averages 35% of its market value over past five years

Bitcoin is less “digital gold” and more “digital beef”, according to a study that suggests the cryptocurrency has a climate impact greater than that of gold mining and on the level of natural gas extraction or rearing cattle for meat.